If you search internet addiction in China, you get quite a few (Scary number) of "Hits" to pages of concern over this.
For me, its immediate "Plausible", as I have teenagers......
-x-clacks-GNU Terry Pratchett----Release the Clan Mac Feegle, awae hame ye scunners.[p]Most of my Job is avoiding Stupid. ...You cant Fix Stupid. Especially when you turn Left at Hammerhead.